TY  - JOUR
PY  - 1957//
TI  - Protective helmets for drivers
JO  - Zentralblatt für Verkehrs-Medizin, Verkehrs-Psychologie und angrenzende ­Gebiete
A1  - Ziffer, D.
SP  - 72
EP  - 78
VL  - 2
IS  - 2
N2  - <p>[Abstract unavailable]</p>  <p>Language: de</p>  <p>Title translated by <a href="http://www.LanguageTranslation.com/" target="blank">Language Translation, Inc.</a></p><p />  <p>Language: de</p>
LA  - de
SN  - 
UR  - http://dx.doi.org/
ID  - ref1
ER  -